There have been several comments from users concerning our selection of candidates, which were first outlined here. PM began our research this fall by looking at the top five presidential hopefuls from each party according to Rasmussen polling data. We also included Republican candidate Ron Paul since he was rising in the polls (he's now favored by 6 percent of likely Republican voters, which is still far behind the top five). Kucinich's numbers have since climbed to 3 percent of likely Democratic voters—the same as Sen. Joe Biden and Gov. Bill Richardson.

As the election season continues, numbers may lead us to include more candidates. As always, campaign staffs may contact us here with relevant new material added to candidate Web sites. —The Editors